Contribution of xylem anatomy to tree-ring width of two larch species in permafrost and non-permafrost zones of Siberia

Описание

Тип публикации: статья из журнала

Год издания: 2020

Идентификатор DOI: 10.3390/f11121343

Ключевые слова: cell diameter, cell-wall thickness, climate factors, cryolithozone, earlywood, forest steppe, latewood, number of cells, tree-ring structure

Аннотация: Plants exhibit morphological and anatomical adaptations to cope the environmental constraints of their habitat. How can mechanisms for adapting to contrasting environmental conditions change the patterns of tree rings formation? In this study, we explored differences in climatic conditions of permafrost and non-permafrost zones andПоказать полностьюassessed their influence on radial growth and wood traits of Larix gmelinii Rupr (Rupr) and Larix sibirica L., respectively. We quantified the contribution of xylem cell anatomy to the tree-ring width variability. Comparison of the anatomical tree-ring parameters over the period 1963–2011 was tested based on non-parametric Mann-Whitney U test. The generalized linear modeling shows the common dependence between TRW and the cell structure characteristics in contrasting environments, which can be defined as non-specific to external conditions. Thus, the relationship between the tree-ring width and the cell production in early-and latewood are assessed as linear, whereas the dependence between the radial cell size in early-and latewood and the tree-ring width becomes significantly non-linear for both habitats. Moreover, contribution of earlywood (EW) and latewood (LW) cells to the variation of TRW (in average 56.8% and 24.4% respectively) was significantly higher than the effect of cell diameters (3.3% (EW) and 17.4% (LW)) for the environments. The results show that different larch species from sites with diverging climatic conditions converge towards similar xylem cell structures and relationships between xylem production and cell traits. The work makes a link between climate and tree-ring structure, and promotes a better understanding the anatomical adaptation of larch species to local environment conditions. © 2020 by the authors. Licensee MDPI, Basel, Switzerland.

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Издание

Журнал: Forests

Выпуск журнала: Vol. 11, Is. 12

Номера страниц: 1-13

ISSN журнала: 19994907

Издатель: MDPI AG

Авторы

  • Popkova Margarita (Siberian Fed Univ, Lab Complex Res Forest Dynam Eurasia, Krasnoyarsk 660041, Russia)
  • Shishov Vladimir V. (Siberian Fed Univ, Lab Complex Res Forest Dynam Eurasia, Krasnoyarsk 660041, Russia; Chinese Acad Sci, Environm & Res Ctr, South China Bot Garden, Guangzhou 510650, Peoples R China; Reshetnev Siberian State Univ Sci & Technol, Sci Lab Forest Hlth, Krasnoyarsk 660041, Russia)
  • Vaganov Eugene A. (Siberian Fed Univ, Rectorate, Krasnoyarsk 660041, Russia; VN Sukachev Inst Forest SB RAS, Fed Res Ctr, Krasnoyarsk 660036, Russia)
  • Fonti Marina (Siberian Fed Univ, Inst Ecol & Geog, Lab Ecosyst Biogeochem, Krasnoyarsk 660041, Russia; Swiss Fed Res Inst WSL, Landscape Dynam, CH-8903 Birmensdorf, Switzerland)
  • Kirdyanov Alexander (Siberian Fed Univ, Lab Complex Res Forest Dynam Eurasia, Krasnoyarsk 660041, Russia; VN Sukachev Inst Forest SB RAS, Fed Res Ctr, Krasnoyarsk 660036, Russia)
  • Babushkina Elena A. (Siberian Fed Univ, Khakass Tech Inst, Abakan 655017, Russia)
  • Huang Jian-Guo (Chinese Acad Sci, Environm & Res Ctr, South China Bot Garden, Guangzhou 510650, Peoples R China; Chinese Acad Sci, Key Lab Vegetat Restorat & Management Degraded Ec, South China Bot Garden, Guangzhou 510650, Peoples R China)
  • Rossi Sergio (Chinese Acad Sci, Key Lab Vegetat Restorat & Management Degraded Ec, South China Bot Garden, Guangzhou 510650, Peoples R China; Univ Quebec Chicoutimi, Dept Sci Fondamentales, Chicoutimi, PQ G7H 2B1, Canada)